只有招架之功，并无还手之力

• can only parry sb.'s blows without being able to hit back; only able to defend oneself but unable to hit back; with strength enough only for defence but not to hit back

参考释义

只有招架之功，并无还手之力 [zhǐ yǒu zhāo jià zhī gōng bìng wú huán shǒu zhī lì]

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